Burglar-alarm.



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E. Q'. GATTEY. BURGLAR ALARM. APPL-NATION FILED FEB.5,"912.

Patented Feb.v18,1913.

- To all whom it may concern:

a citizen of the 4United States, residingat- UNITED STATES 'PATENTonirica.

ELBRT Q. GATTEYS, OFBOONEVILLE, IlVIISSISSIlEPI..

, BUaGLAaALeRM.'

'Sp-ecication of Letters Patent Patented eb.18,1e13.

. Application ledvisebruary 5, 1912. Serial No. 675,409.4

Be it known that I, ELB'ERT Q. Ga'rrEY's,

Booneville, in the county of Prentiss and vState of Mississippi, haveinvented certain new anduseful Improvements in Burglarl Alarms,"ofwhichthe following is -a speci- My invention relates to burglar alarms andparticularly to' alarms. for use with windows or doors whenit isdesirable to have ventilationthrough the windows or doors,

and the object is to provide certain simple and inexpensive applianceswhich will be` operated easily, and with accuracy by the window sash andwhich is adapted for use on windows provided with upper and lower 'sashwhichy can be lowered and raised respectively for ventilation, and whichwill give an ,alarm on the movement of either window sash.

Other objects and advantages will be fully explained in thel followingdescription and thel invention will be morev particularlyV pointed outin the claims.

`Reference is had to drawings which form a part of this application andspecification.

Figure 1 is a section of a window frame and sash,`showing theapplication of theburglar' alarm applied thereto so that there may. beventilation under the lower sash.'

lFig 2 is a similar section, showing how the upper sash is arranged forventilation when the burglar alarm is set. Fig. 3 is a side elevation oia portion of a window frame and sash with the alarm attached thereto.

Fig. 4 is a detail section, showing the\plunv ger and its barrel. -Fig.5 is a detail view, showing the plunger barrel in section and showingthe actuating spring.

Similar characters of reference are used to indicate lthe same partsthroughout the with a lever 9 and a sto several views. v l' A l'plungerbarrel 1 is attached 'to vthe window casing by means of integral ears 2.The plunger barrel 1 has an annular interior shoulder Ltand thisshoulder forms a spring seat. f/The plungerA 5 has an annular interiorshoulder 6 and a spiral s ring 7 is mounted on the stem 8 between t eshoulder 4 and 'the shoulder 6. The stem 8 is provided hasa slot 11 inone si e thereof in which the. accompanying 10. The barrell v the 'stop10 will move. A keeper l2 is mounted yon the window frame near oradjacent to the plunger barrel l. A cartridge 13V may be'mounted in thekeeper 1 2. and charged vwith powder or other explosive. A chain 14 isattached to the lever 9 and lugs or hooks l5 and i16 are mounted onthe.

sash 17 to be engaged by the chain 14. The

charged .cartridge 13 provides one means of giving an alarm.

The alarm can be made continuous by. an electric circuit'a'nd. bell. Abattery 18 is providedarid a. wire 19` is electrically connected to onepole of the battery and to the keeper 12. A wire-20 is .electricallycon'- nected to the other pole of-the battery 18.

,and to the plunger barrel 1. The wire 20 1s intercepted and connectionis made throughav bell 21 from the battery 18.to

the barrel l. Electric connection 1s made from the barrel 1 to theplunger stem 8 and the plunger itself. The circuit is completed when theplunger 1s thrown by the plunger the cartridge 13. make electricconnection with the keeper 12. The alarm can be used with both thecartridge 13 and without the cartridge. When `the cartridge is removed,the plunger 5 will make electric connection direct with the keeper 12,and thus cause the bell to ring. The alarm, when set, is started by themovement of either the sash 17 or sash 22.

:To set the alarm for ventilation under the lowerq sash.-Place the endof the chain 14" on the hook 16. Take hold of knob 23 and pull'on thestem 8, compressing the spring 7 to full tension. Then turn the lever 9to the left untill the stop 10 will rest against -comlng in 'Contactwith the metallic head of j The cartridge 13 will' the' end of thebarrel 1. The lower sash 22 7 compressthe spring 7 and turn the lever.to

make the .stop 10 rest a ainst the end of the barrel `l. It the sash 1is moved in either direction, the chain will pull on thel lever and thusthrow the plunger and set off the alarm.

To ret he alarm fmq 'ventilation' (it both4 the top" and botomrfSet thealarm the same as for ventilation at the vtop and then raise the lowersash up until thevtopltouches the chain 14. If. the lower sash islraised or the uppersash is lowered, the alarmwill be set olf.

"Two means are shown for giving alarms.q

These can be used jointly or separately.

'Having fully 4v`described my invention,

what I claim as new and desire toseeure by Letters Patent, is,-

a 1 The combination of upper and llower window sash and a burglar alarmconsistwindow frame and carrying alarm makingv devices, a metallicbarrelattached to the window frame and having a'slot in com-- ing .of ametallicA bracket attaehedto the munication with the opening through thebarrel, a'springactuated plunger operating in said barrel and having astem projecting therefrom, a lug rigid with .said stem adapted to movein said slot and adapt'ed to rest against `themouth of said barrel and lhold said plunger at tension, a lever rigid with said stem, a. chainengaging said lever l atv one -end and extending across the path ut' thelowen sash, and means for attaching l said chain to the upper sash atdifferent positi'ons on said sash whereby the movement of either sashwill cause said plunger to be thrown.

2. The eomhinationof. upper yand lower window sash and a window frame, aburglar alarm consisting` of a metallic bracket attached to thewindowframe and carrying alarm-making devices, a metallic barrel at' tached tothe window-frame and having a slot, in communication with the opening-through the barrel, a spring-actuated plunger operating in said barreland havmg a stem projecting therefrom, a stop lug rigid' with said stemand adapted to move 1n said `slot and rest against the mouth of saidbar- 4ELBERT Q. GATTEYS.

. Vitnesses: I i

SIDNEY S'. STEPHENS, Gor YOUNG.

